Ya, throw it in a case with a basic powersupply and a small HDD, and it becomes a whole lot more attractive to somebody on Kijiji. You could probably get upwards of $300 for it then, especially if you put a 'free' version of an OS on it.

My friend just gave me an e6600 and a GA-965P-DS3 board the other day. I added a GTX 460, Intel 520 SSD and some 2X2GB 1066mhz Buffalo ram that I had laying around. I oc'd the e6600 to 3.636Ghz and I gotta say it is a nice machine for what it is.

I guess in the end my point is that to some such parts are worth very little and they give them away and to others they are still of value. IMHO if you are just selling the parts I would ask for $100.